Patents by Inventor Sven Petersson

Sven Petersson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • CHANNEL CONDITION ESTIMATION
    Publication number: 20210075481
    Abstract: There is provided mechanisms for obtaining channel conditions per antenna element, A method is performed by a wireless radio transceiver device comprising N antenna elements in an antenna array with analog beamforming and being configured to communicate using beams. The method comprises obtaining, for a stationary radio propagation channel, channel conditions for signals received by the wireless radio transceiver device in M beams, where M>1. The method comprises transforming the channel conditions for the M beams to channel conditions for the N antenna elements by using a relation based on beamforming weights that map the N antenna elements to the M beams.
    Type: Application
    Filed: July 17, 2020
    Publication date: March 11, 2021
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Mikael COLDREY, Andreas NILSSON
  • Antenna array and arrangement comprising an antenna array and a network node
    Patent number: 10944173
    Abstract: An antenna array comprising at least two sets of antenna unit elements is disclosed. Each set of antenna unit elements supports a respective frequency band, wherein a vertical center-to-center distance between the antenna unit elements of a lowest frequency among the respective frequency bands is more than twice the vertical extension, D, of convex hull containing one antenna unit element of the lowest frequency, and antenna unit elements of at least a second set are arranged interleaved with the antenna unit elements of the lowest frequency. An arrangement comprising the antenna array and a network node is also disclosed.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: March 9, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Martin Johansson, Fredrik Athley, Andreas Nilsson, Sven Petersson
  • Network architecture, methods, and devices for a wireless communications network
    Patent number: 10938497
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali el Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Niklas Johansson, Martin Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landstrom, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Active antenna system
    Patent number: 10911963
    Abstract: The present invention relates to an active antenna system, AAS, for controlling coverage in a telecommunication network, and the AAS comprising a plurality of subarrays each having multiple radiating elements. The AAS is configured to provide coverage in a coverage angular range and the plurality of subarrays comprising at least two types of subarrays. The at least two types of subarrays comprises: a first type of subarray with a first radiation pattern having at least a first angular region with gain below a first threshold value, and a second type of subarray with a second radiation pattern having at least a second angular region with gain below a second threshold value, wherein the second radiation pattern deviates from the first radiation pattern and the first angular region in the first radiation pattern differs from the second angular region in the second radiation pattern.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: February 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven Petersson, Bo Hagerman, Martin Johansson, Stefan Johansson
  • BEAM FORMING USING AN ANTENNA ARRANGEMENT
    Publication number: 20210013956
    Abstract: There are provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports. The one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports. The two subarray ports have identical power patterns and mutually orthogonal polarizations. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights and map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.
    Type: Application
    Filed: May 26, 2020
    Publication date: January 14, 2021
    Inventors: Maksym GIRNYK, Sven PETERSSON
  • Estimation of channel conditions
    Patent number: 10886986
    Abstract: There is provided mechanisms for obtaining channel conditions per antenna element of an antenna array comprising N antenna elements. The antenna array is configured for communications using orthogonal sub-carriers. A method is performed by a radio transceiver device. The method comprises obtaining channel conditions of a radio propagation channel per sub-carrier for signals received on the sub-carriers by the antenna array. A set of receiving entities are associated with the sub-carriers in an interleaved manner such that each receiving entity is interleaved over a respective disjoint subset of sub-carriers. The method comprises transforming the channel conditions at least for those sub-carriers located within a coherence bandwidth of the radio propagation channel to channel conditions for the N antenna elements by using a relation that maps the receiving entities to the N antenna elements.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: January 5, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Andreas Nilsson, Sven Petersson
  • TRANSMISSION OF REFERENCE SIGNALS FROM A TERMINAL DEVICE
    Publication number: 20200395981
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.
    Type: Application
    Filed: February 19, 2019
    Publication date: December 17, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
  • Beam Forming Using an Antenna Arrangement
    Publication number: 20200395664
    Abstract: There is provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports, wherein the one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports, the two subarray ports having identical power patterns and mutually orthogonal polarization. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports.
    Type: Application
    Filed: March 23, 2020
    Publication date: December 17, 2020
    Inventors: Fredrik Athley, Sven Petersson
  • Configuration of physical antenna ports
    Patent number: 10862636
    Abstract: There is provided mechanisms for configuration of physical antenna ports. The method is performed by a first radio transceiver device. A method comprises determining a configuration for the second radio transceiver device. The configuration defines a mapping between the sub-carriers and the physical antenna ports and specifies which of the sub-carriers are to be transmitted on which physical antenna port at the second radio transceiver device. The method comprises providing the configuration to the second radio transceiver device.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: December 8, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Sven Petersson, Henrik Sahlin
  • Method and device for analog beamfinding
    Patent number: 10855391
    Abstract: A method (30) for analog beamfinding performed by a device (1, 2) is provided. The method (30) comprises performing (31) one or more one-dimensional beam sweeps in a first direction, performing (32) one or more one-dimensional beam sweeps in a second direction, and determining (33) a two-dimensional beam based on at least one one-dimensional sweep in the first direction and at least one one-dimensional sweep in the second direction. A corresponding device (1, 2), computer program (42) and computer program product (41) are also provided.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: December 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Andreas Nilsson, Sven Petersson
  • WIRELESS COMMUNICATION NODE ADAPTED TO RADIATE ANTENNA BEAMS OF DIFFERENT TYPES
    Publication number: 20200373982
    Abstract: A wireless communication node comprising an antenna arrangement that is adapted to radiate at least one radiation beam of a first type and at least one radiation beam of a second type. Said at least one radiation beam of the first type has a first type beamwidth (BT1) and said at least one radiation beam of the second type has a second type beamwidth (BT2) that exceeds the first type beamwidth (BT1). Said at least one radiation beam of the first type is arranged for communication with at least a first other node, and where said at least one radiation beam of the second type is arranged for detection of changes in propagation paths for said other node and/or appearances of further other nodes.
    Type: Application
    Filed: April 3, 2020
    Publication date: November 26, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Fredrik Athley, Sven Petersson
  • BEAM SELECTION SYSTEMS AND METHODS
    Publication number: 20200359404
    Abstract: During a first P3 sweep that is associated with a first TCI state and during a second P3 sweep that is associated with a second TCI state, the UE stores the RSRP for each UE RX beam for each UE panel. Then, when the UE is scheduled for a downlink transmission through a DCI pointing to two these two TCI states, instead of only selecting the UE RX beam for respective panel based on the highest RSRP, the UE also takes the hypothetical inter-stream interference in to account when selecting the UE RX beams.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 12, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas NILSSON, Fredrik Athley, Sven Petersson
  • TRANSMISSION OF REFERENCE SIGNALS FROM A TERMINAL DEVICE
    Publication number: 20200343947
    Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. Each physical antenna port is fed by its own power amplifier. The method comprises transmitting, in only the physical antenna port is fed by the power amplifier configured for highest total output power of all the power amplifiers, as many uplink reference signals as there are physical antenna ports in total.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 29, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
  • Beam Management of a Radio Transceiver Device
    Publication number: 20200280408
    Abstract: There is provided mechanisms for performing beam management. A method is performed by a radio transceiver device. The method comprises transmitting a reference signal in a transmission beam as part of the beam 5 management. The reference signal in the transmission beam occupies time/frequency resources that extend over a frequency interval. The transmission beam has a frequency-dependent polarization over the frequency interval.
    Type: Application
    Filed: October 10, 2017
    Publication date: September 3, 2020
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • Antenna arrangements for a radio transceiver device
    Patent number: 10763592
    Abstract: There is provided an antenna arrangement for a radio transceiver device. The antenna arrangement comprises at least two antenna arrays, wherein at least one of the at least two antenna arrays has antenna elements of two polarizations. The antenna elements of one polarization at each of the at least two antenna arrays define a respective set of antenna elements. The antenna arrangement comprises at least two baseband chains. The antenna arrangement comprises a switching network configured to selectively operatively connect each of the at least two baseband chains with its own set of antenna elements such that no two baseband chains are operatively connected to one and the same set of antenna elements. Each of the at least one antenna array that has antenna elements of two polarizations is operatively connected to the switching network via a respective hybrid connector configured to provide a signal from one of the baseband chains to antenna elements of both polarizations.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: September 1, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Sven Petersson, Andreas Nilsson
  • Frequency-selective beam management
    Patent number: 10757715
    Abstract: A method performed by a user equipment (UE) is provided. The method includes selecting a first beam for a first frequency band and selecting a second beam for a second frequency band. The method further includes receiving scheduling information (SI) for scheduling at least one of an uplink (UL) transmission from the UE and a downlink (DL) transmission to the UE. The SI includes frequency information identifying a frequency band. The method further includes selecting a beam from a set of beams including the first and second beams. The selection is based on the identified frequency band.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: August 25, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Nilsson, Sven Petersson
  • Beamforming based on combined beams
    Patent number: 10750547
    Abstract: There is provided mechanisms for beamforming. A method is performed by a network node. The network node is capable of communicating with served wireless devices using multiple beams generated by analog beamforming in an antenna array. The method comprises identifying, based on statistics of handovers of the served wireless devices between the beams, a need to combine at least two of the beams into a new beam. The method comprises determining beamforming weights to be applied at the analog antenna array for generating the new beam. The method comprises communicating with the served wireless devices using the new beam with the determined beamforming weights having been applied at the analog antenna array.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 18, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (FUEL)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • Beam management in a communications network
    Patent number: 10742298
    Abstract: There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises performing a beam management procedure by simultaneously transmitting a first reference signal in a first set of beams and a second reference signal in a second set of beams. The first set of beams is transmitted at a first antenna array of the radio transceiver device and in a first polarization. The second set of beams is transmitted at a second antenna array of the radio transceiver device and in a second polarization.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • System and method for uplink precoding in a communication system
    Patent number: 10735076
    Abstract: System and method for uplink precoding in a communication system. In one embodiment, an apparatus is operable in a communication system and includes processing circuitry configured to identify an antenna element of a user equipment to disregard for uplink precoding, and provide an instruction to direct the user equipment to remove an antenna port associated with the antenna element from a codebook employed by the user equipment to precode a communication within the communication system.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: August 4, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • ANTENNA ARRANGEMENT FOR DUAL-POLARIZATION BEAMFORMING
    Publication number: 20200243985
    Abstract: There is provided an antenna arrangement. The antenna arrangement comprises a baseband chain. The antenna arrangement comprises an antenna array. The antenna array is coupled to the baseband chain and divided into a first sub-array and a second sub-array. The first sub-array comprises antenna elements of only a first polarization and the second sub-array comprises antenna elements of only a second polarization. The first sub-array and the second sub-array have their antenna elements at identical locations relative each other, except for the antenna elements of the first sub-array and the antenna elements of the second sub-array being translated, but not rotated, relative each other.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 30, 2020
    Inventors: Sven PETERSSON, Andreas NILSSON